JP2020025609A - Shower head device - Google Patents

Abstract

To prevent dropout of a decorative member, while heightening industrial designability, by installing the decorative member from the back surface side of a spray plate.SOLUTION: A shower head device includes a lower spray plate 2B having a water spray hole 24a on the surface 24b, and a body case 4 for holding the lower spray plate 2B, and storing an annular waterway 3C communicating with the spray hole 24a inside, and has a constitution in which, on the lower spray plate 2B, a first opening 23 is formed on a center part as a view from the surface side, and a cosmetic plate 22 arrangeable so as to block the first opening 23 from the back surface side of the spray plate is provided.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a shower head device.

Conventionally, in a shower head device connected to a water supply hose extended from a water supply source to spray water such as hot water from the surface side, a watering plate having watering holes on the surface, a watering plate is held, and water is sprayed inside. There is generally known a device provided with a main body case that accommodates a water passage communicating with a hole.
In such a shower head device, there is one having a structure that is fixed to a main body case with a screw from the front side of a sprinkling plate, as shown in Patent Document 1, for example.

JP 2015-47268 A

  However, in the conventional shower head device as disclosed in Patent Literature 1, since the decorative member and the like are attached from the front side of the sprinkler plate, the decorative member is caused by water pressure of hot water or the like flowing in the main body case or an external impact. Had the problem of dropping out.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a shower head device that can prevent the decorative member from falling off by attaching the decorative member from the back side of the sprinkling plate. .

  In order to achieve the above object, a shower head device according to the present invention has a sprinkler plate having a sprinkler hole on the surface, a main body case that holds the sprinkler plate, and houses therein a water passage that communicates with the sprinkler hole, A shower head device comprising: a sprinkling plate, wherein an opening is formed in a central portion as viewed from the front side, and a decorative member that can be arranged to close the opening from the back side of the sprinkling plate is provided. It is characterized by being.

  According to the present invention, the decorative member is attached from the back side of the sprinkler plate, and the decorative member can be supported from the front side by the sprinkler plate. Receiving can prevent falling off to the surface side.

  Further, the shower head device according to the present invention may be characterized in that the decorative surface located on the surface of the decorative member is provided at a position recessed from the surface of the watering plate.

  In this case, the decorative member is attached from the back side of the sprinkler plate, and the decorative member disposed at the opening in the central portion of the sprinkler plate does not protrude more toward the surface side than the surrounding sprinkler plate. And there is an advantage that the cleaning property is also good.

  Further, the shower head device according to the present invention may be characterized in that a ring member is interposed between the opening of the sprinkler plate and the decorative member.

In this case, it is possible to dispose the ring member at the opening of the sprinkler plate, and further arrange the ring member with the decorative member being held. For this reason, the ring member serves as an accent, and the connection between the opening of the sprinkler plate and the decorative member becomes difficult to see from the front side, so that the design can be improved.
Further, when the decorative member is arranged so as to be recessed on the back side than the opening, the step formed between the opening of the watering plate and the decorative member can be smoothly continued by the ring member. In addition, the cleaning property can be improved while improving the design property.
Moreover, since the decorative member can be securely held by the ring member with respect to the opening, it is possible to prevent a problem that the decorative member is shifted or tilted.

  According to the shower head device of the present invention, the makeup member can be prevented from falling off by attaching the makeup member from the back side of the sprinkling plate.

It is the perspective view which looked at the whole composition of the shower head device by an embodiment of the present invention from the oblique surface side. FIG. 2 is an exploded perspective view of the shower head device shown in FIG. It is a longitudinal cross-sectional view which passes through a watering axis of a watering member and a water passing member. It is an exploded perspective view of a water sprinkling member. It is a perspective view which shows the structure of a water spray member and a grip case. It is the perspective view which looked at the water sprinkling member, the water-passing member, and the grip case from diagonally back side. It is an exploded perspective view showing a state before fixation of a water sprinkling member and a water passage member. FIG. 4 is an exploded perspective view of an upper water passage and a lower water passage in the water passage member. FIG. 9 is an exploded perspective view in which the upper water passage and the lower water passage shown in FIG. 8 are integrally joined. It is the top view which looked at the lower water passage part from the back side. It is the top view which looked at the lower water passage part from the surface side. It is the top view which looked at the upper water passage part from the surface side. It is the perspective view which looked at the upper water flow part from the diagonal surface side. It is a longitudinal section of a shower head device.

  Hereinafter, an example of a shower head device according to an embodiment of the present invention will be described with reference to the drawings.

  The shower head device 1 of the present embodiment shown in FIGS. 1 and 2 is connected to a water supply hose 6 (FIG. 1) extended from a water supply source (not shown) to supply a fluid such as hot water or water from the surface side. It is a hand shower spraying water.

As shown in FIG. 3, the showerhead device 1 has a water spray member 2 having a water spray hole 24a on its surface to spray water, and a water passage (annular water passage 3C) communicating with the water spray hole 24a inside. , A water-passing member 3 for supplying fluid from the upstream side to the water-spreading member 2, a body case 4 accommodating the water-spreading member 2 and the water-passing member 3, and a primary water stopping mechanism unit 5 housed in the body case 4 (FIG. 2).
The shower head device 1 can switch from water supply to primary water stop by operating a push button 53 described later provided on the main body case 4 when water supply to the water sprinkling member 2 is primarily stopped. It has become.

The water sprinkling member 2 and the water passing member 3 are formed in a substantially disk shape by a member such as metal or plastic.
Sprinkling member 2 has upper sprinkling plate 2A and lower sprinkling plate 2B. The water passage member 3 has an upper water passage section 3A and a lower water passage section 3B. The upper water-passing portion 3A, the lower water-passing portion 3B, the upper watering plate 2A, and the lower watering plate 2B are arranged in this order from above (back surface) to below (front surface).
The water sprinkling member 2 has an accent ring 21 and a decorative plate 22 (decorative member) at the center in plan view as viewed from the back. The upper sprinkling plate 2A and the lower sprinkling plate 2B are welded while sandwiching the accent ring 21 and the decorative plate 22.

Here, in the following description, the upper water-passing portion 3A, the lower water-passing portion 3B, the upper watering plate 2A, the lower watering plate 2B, the accent ring 21, and the decorative plate 22 are arranged on a common axis. It is called the sprinkling axis O. Along the direction of the watering axis O, on one surface of the lower watering plate 2B where the watering holes 24a open, the surface side on which the fluid is discharged is referred to as the front side, or the lower side, and the other surface side is the rear side, or It is called the upper side.
In a plan view seen from the direction of the watering axis O, a direction orthogonal to the watering axis O is referred to as a radial direction, and a direction of orbiting around the watering axis O is referred to as a circumferential direction.

  3 and 4, the lower sprinkling plate 2B is formed in a circular shape in plan view, has a first opening 23 in the center, and has a plurality of sprinkling holes 24a penetrating in the plate thickness direction. Watering surface 24 is provided. The plurality of watering holes 24a are arranged evenly along the circumferential direction of the lower watering plate 2B. The shower head device 1 discharges fluid from a plurality of water spray holes 24a in a shower shape. The first opening 23 is formed in a substantially rectangular shape in which a corner is smoothly curved. The water spray surface 24 is formed as a convex curved surface that protrudes downward from the outer peripheral portion toward the central first opening portion 23.

On the back surface of the water spray surface 24, a cylindrical rib 25 protruding from the periphery of the first opening 23 toward the back surface side is provided. The cylindrical rib 25 has an inner diameter that is located outside the first opening 23, and an upward step 25 a is formed between the cylindrical rib 25 and the first opening 23. A plurality of (three in this case) cutout recesses 25b that open upward are formed in the cylindrical rib 25 at equal intervals in the circumferential direction. In these three notched concave portions 25b, a connecting piece 262 of the upper sprinkling plate 2A described later is locked.
The accent ring 21 and the decorative plate 22 are inserted and housed inside the tubular rib 25 from the back side.

  The accent ring 21 has a substantially circular ring shape, and has a first flange portion 211 whose upper portion projects outward in the radial direction. A portion of the accent ring 21 below the first flange portion 211 (the ring main body 212) is formed with a curved surface 212a that gradually and gradually rises from the outer periphery toward the inner periphery. The upper surface 211a of the first flange portion 211 is formed flat.

  The accent ring 21 is housed inside the first opening 23 and the tubular rib 25 of the lower sprinkling plate 2B from above (back side) with the decorative plate 22 attached. Specifically, the ring main body 212 is engaged with the first opening 23, and the first flange 211 of the accent ring 21 is in contact with the step 25a formed on the cylindrical rib 25 from the back side. It is installed. At this time, the lower end 212b of the ring main body 212 is set so as not to be flush with the surface 24b of the water sprinkling surface 24 or to project at least below the surface 24b.

  The decorative plate 22 includes a decorative plate 221 having a flat decorative surface 221a on the lower surface, and a second flange 222 projecting radially outward from an upper edge of the decorative plate 221. The decorative plate 221 is formed to have the same shape as the inner peripheral shape of the accent ring 21, and is provided so as to be fitted to the inner peripheral surface 21 a of the accent ring 21. With the decorative plate 221 fitted to the accent ring 21, the lower surface 222 a of the second flange 222 is in contact with the upper surface 211 a of the first flange 211 of the accent ring 21.

  The decorative plate 22 has the decorative surface 221 a positioned above the lower end of the ring main body 212 when mounted on the accent ring 21. That is, the decorative surface 221a is disposed at a position deeper than the surface 24b of the water spray surface 24 in a state where the decorative plate 22 is attached to the opening 23 of the lower water spray plate 2B via the accent ring 21.

As shown in FIGS. 3 and 4, the upper sprinkling plate 2A has a circular second opening 260 which is fitted to the cylindrical rib 25 of the lower sprinkling plate 2B at the center, and the outer peripheral edge of the lower sprinkling plate 2B. It is provided integrally with the outer peripheral wall 2b protruding upward on the radially inner side near 2a by welding over the entire circumference.
The upper sprinkling plate 2 </ b> A includes a circular plate portion 261, a screw locking cylinder 263 provided via a connecting piece 262 at a central portion inside a second opening 260 formed at the center of the circular plate portion 261, A plurality (three in this case) of first flow holes 264 penetrating the plate portion 261 in the plate thickness direction.

The disk portion 261 has an air intake surface 261a that forms an air layer 26A between the upper surface and the lower water passage portion 3B. An air inlet 26B is formed between the outer peripheral side of the air intake surface 261a and the outer peripheral edge of the water passage member 3, and the air layer 26A and the inside of the head main body 41 of the main body case 4 are formed through the air inlet 26B. The space is in communication.
Here, the air layer 26 </ b> A communicates with the first flow hole 264, and the inside of the outside (here, the space that communicates with the air intake surface 261 a in the head main body 41 of the main body case 4) flows in. Space.

  In addition, a watering chamber 24A is formed between the disk portion 261 and the watering surface 24 of the lower watering plate 2B while being fixed to the lower watering plate 2B. The air intake surface 261a is formed as a convex curved surface that protrudes downward from the outer peripheral portion toward the central second opening 260. The first flow holes 264 formed in the disk portion 261 are provided at predetermined intervals in the circumferential direction, and are provided immediately below the second flow holes 34 of the below-described water passage portion 3B with a predetermined distance therebetween. It is arranged and arranged at a position where it is coaxial.

The first flow hole 264 has a throttle shape that is narrowed as the flow path cross-sectional area goes downward. That is, the first flow hole 264 mixes the water sent out from the second flow hole 34 with the air in the air layer 26A of the air intake surface 261a, and mixes the water with the surface of the disk portion 261 (the water spray surface of the lower water spray plate 2B). 24).
As described above, in the upper sprinkler plate 2A, the air is drawn from the air layer 26A through the air inlet 26B by the negative pressure generated by the fluid passing through the first flow holes 264, and the fluid and the air are mixed. Let it. The first flow holes 264 guide the fluid mixed with the bubbles to the water spray surface 24.
As described above, the upper sprinkling plate 2A has an ejector function of mixing air into the fluid via the air layer 26A through the first circulation hole 264 and supplying the mixed air to the sprinkling chamber inside the lower sprinkling plate 2B. I have. Then, the air-containing fluid (water) supplied to the sprinkling chamber is sprinkled from the many sprinkling holes 24a.

  A plurality (three in this case) of positioning ribs 265 protruding upward is provided on the air intake surface 261a of the disk portion 261. The positioning rib 265 extends along the radial direction of the disk portion 261 at a position corresponding to the first flow hole 264 in the circumferential direction.

  The screw locking cylinder 263 is supported by three connecting pieces 262 connected to the second opening 260. The plurality of connecting pieces 262 extend in the radial direction, and are arranged at predetermined intervals in the circumferential direction. A female screw 263a into which a fixing screw 50 described later can be screwed is formed inside the screw locking cylinder 263.

As shown in FIGS. 5 to 9, the lower water passage portion 3B is arranged at an interval on the back surface side of the disk portion 261 of the upper watering plate 2A, and is fixed from above the upper watering plate 2A by the fixing screw 50. ing.
As shown in FIGS. 8 and 10, the lower water passage 3 </ b> B has a ring-shaped first annular water passage 31 and a central portion inside a third opening 32 formed at the center of the first annular water passage 31. And a plurality (three in this case) of second flow holes 34 penetrating the first annular water passage 31 in the plate thickness direction.

The first annular water passage 31 includes an annular plate 311, an inner peripheral wall 312 projecting upward from the inner peripheral edge of the annular plate 311 over the entire periphery, and an outer peripheral wall 313 projecting upward from the outer peripheral edge of the annular plate 311 over the entire periphery. ,have. The first annular water passage 31 constitutes a lower half of the water passage member 3.
The second flow holes 34 are provided at predetermined intervals in the circumferential direction in the annular plate 311, are disposed immediately above the first flow holes 264 of the upper sprinkler plate 2A with a predetermined distance therebetween, and are coaxial with each other. Are located in

The third opening 32 is coaxially arranged with the same diameter as the second opening 260 of the upper sprinkler plate 2A.
As shown in FIGS. 7 and 8, the screw insertion tube 33 has a top-end cylindrical shape, and a screw hole 332 a through which a screw portion of the fixing screw 50 can be inserted is formed in the top wall 332. The screw stopper tube 263 of the upper sprinkling plate 2A is inserted into the screw insertion tube 33. The fixing screw 50 inserted into the screw hole 332a from above can be screwed into the female screw 263a of the screw locking cylinder 263.

As shown in FIG. 11, a lower surface 311a of the annular plate 311 of the first annular water passage 31 is fitted from above into a positioning rib 265 provided on the air intake surface 261a of the disk portion 261 of the upper sprinkler plate 2A. The convex rib 35 protrudes downward (see FIG. 5).
The convex rib 35 is made of a pair of rib members spaced from each other by the rib width of the positioning rib 265, and is located at a position corresponding to a plurality of (three) positioning ribs 265 in the circumferential direction in the radial direction of the annular plate 311. Extends along. The height of the convex rib 35 is set larger than the height of the positioning rib 265. The lower water passage section 3B is arranged at an interval above the air intake surface 261a of the disk section 261 of the upper water spray plate 2A by engaging the positioning rib 265 with the convex rib 35 so as to sandwich it. Is done.

As shown in FIGS. 5 to 9, the upper water passage 3A is integrally fixed by welding the outer peripheral edges on the back surface side of the upper water passage 3A to form a donut-shaped annular water passage 3C inside. are doing.
As shown in FIGS. 12 and 13, the upper water passage 3 </ b> A communicates from the side with the ring-shaped second annular water passage 37 having the fourth opening 36 formed in the center, and the second annular water passage 37. And a fluid introduction path 38 that performs the operation.

  The second annular water passage 37 includes an annular plate 371, an inner peripheral wall 372 projecting downward from the inner peripheral edge of the annular plate 371 over the entire periphery, and an outer peripheral wall 373 projecting downward from the outer peripheral edge of the annular plate 371 over the entire periphery. ,have. The second annular water passage 37 forms an upper half of the water passage member 3. The annular plate 371 is formed as a convex curved surface that projects upward from the outer peripheral portion toward the central fourth opening 36. The inner peripheral wall 372 and the outer peripheral wall 373 in the upper water-passing section 3A are fixed to each other by bringing the protruding ends of the inner peripheral wall 312 and the outer peripheral wall 313 of the lower water-passing section 3B into contact with each other. The first annular water passage 31 and the second annular water passage 37 are vertically combined to form a donut-shaped annular water passage 3C. In other words, since the location where the water sprinkling member 2 is fixed to the water flow member 3 using the fixing screw 50 is the central portion, the height of the upper water passage portion 3A on the outer peripheral side can be reduced.

The fourth opening 36 is arranged coaxially with the same diameter as the third opening 32 of the lower water passage 3B. A central cavity communicating with the insides of the second opening 260 and the third opening 32 is formed inside the fourth opening 36. The central cavity is a space accessible from above to the screw hole 332a of the screw insertion tube 33, and the fixing screw 50 can be tightened to the female screw 263a of the screw locking tube 263.
The fluid introduction passage 38 extends radially outward from the second annular water passage 37 and has an opening at an upstream end, and is connected to a flow passage of the primary water stopping mechanism unit 5 described later.

  As shown in FIGS. 1 and 2, the main body case 4 has a head main body portion 41 having a bowl-shaped portion 41 a on the surface side capable of accommodating the water sprinkling member 2 and the water passing member 3, and a head main body portion 41 having a longitudinal shape. A handle 42 is provided integrally at one end in the direction, and a button opening 43 which is opened on the front surface side of the handle 42 and in which a push button 53 described later is arranged. Such a main body case 4 is formed of plastic or the like.

  The outer peripheral portion of the lower watering plate 2B of the watering member 2 is fitted to the inner peripheral edge 41b of the head main body 41. As a result, the water sprinkling member 2 is mounted inside the head main body 41. That is, the back side and the outer peripheral surface of the water sprinkling member 2 are in a state of being covered by the head main body 41.

  The handle portion 42 has a cylindrical shape with a flat cross section in which the vertical direction is shorter than the width direction, and has a shape that is easy to grasp and support with one hand. A flow path is formed inside the handle 42 along the longitudinal direction of the handle 42. The handle portion 42 is provided so as to be capable of housing the primary water stopping mechanism unit 5 inserted therein from the opening on the base end side opposite to the head body portion 41 side. Note that the distal end of the primary water stopping mechanism unit 5 housed in the handle portion 42 is connected to the annular water passage 3 </ b> C of the water passing member 3 in a state of being communicated therewith.

  As shown in FIG. 14, the primary water stopping mechanism unit 5 is housed inside the handle 42 of the main body case 4. The primary water stopping mechanism unit 5 opens and closes a long and thin cylindrical grip case 51 conforming to the shape of the handle part 42 and a flow passage accommodated in the grip case 51 and capable of communicating with the annular water passage 3C of the water passage member 3. And a push button 53 for moving the valve 52 so that the flow path can be opened and closed and the flow path can be switched via a snap-fit mechanism.

The grip case 51 is divided into two parts in a longitudinal direction into a distal case 51A and a proximal case 51B. A male screw 51a for connecting to the shower hose 6 (see FIG. 1) is formed at a base end of the base side case 51B.
As shown in FIG. 14, a grip opening 4 a into which the primary water stopping mechanism unit 5 can be inserted is formed at a base end of the main body case 4 (an end opposite to the water sprinkling member 2). (See FIGS. 1 and 2).

On both sides of the valve body 52 of the distal end side case 51A, a case internal flow path 511 that takes in fluid supplied via the shower hose 6 into the annular water passage 3C of the water passage member 3 housed in the main body case 4. Are formed along the longitudinal direction of the distal case 51A. The flow path in the case is separated from the valve body accommodating portion 512 in which the valve body 52 is accommodated by a partition.
In addition, the code | symbol S of FIG. 14 has shown the connection part by the snap fit mechanism. The connecting portion S provided to protrude from the distal end of the grip case 51 is configured to be locked on the outer peripheral surface of the fluid introduction path 38 of the water passage member 3.

Next, the operation of the shower head device 1 according to the present embodiment will be described.
In this embodiment, as shown in FIG. 3, the decorative plate 22 is attached from the back side of the sprinkling plates 2A and 2B, and the decorative plate 22 can be supported from the front side by the sprinkling plates 2A and 2B. 22 can be prevented from dropping to the surface side due to a large water pressure generated in the main body case 4 or an external impact.

  Moreover, in the present embodiment, the decorative plate 22 is attached from the back side of the sprinkling plates 2A, 2B, and the decorative plate 22 is supported from the front side by the sprinkling plates 2A, 2B. Dropping to the surface side due to a large water pressure or an external impact can be prevented.

  Further, in the present embodiment, the decorative surface 221a located on the surface of the decorative plate 22 is provided at a position recessed from the surfaces of the water spray plates 2A and 2B (the surface 24b of the water spray surface 24). Since the decorative plate 22 arranged at the opening in the central portion does not protrude more toward the surface side than the surrounding water sprinkling plates 2A and 2B, there is an advantage that the design is improved and the cleanability is good.

  Further, in the present embodiment, the accent rings 21 can be arranged at the openings of the sprinkling plates 2A, 2B, and the accent plates 21 can be arranged with the decorative plate 22 held. Therefore, the accent ring 21 serves as an accent, and the connection between the openings of the sprinkler plates 2A and 2B and the decorative plate 22 is difficult to see from the front side, so that the design can be improved.

Further, when the decorative plate 22 is disposed so as to be recessed on the back surface side from the opening, the step formed between the openings of the sprinkling plates 2A and 2B and the decorative plate 22 by the accent ring 21 is smoothly. Since they can be made continuous, the cleanability can be improved while improving the design.
Moreover, since the decorative plate 22 can be securely held by the accent ring 21 with respect to the opening, it is possible to prevent the decorative plate 22 from being displaced or inclined.

  As described above, according to the shower head device 1 of the present embodiment, by attaching the decorative plate 22 from the back side of the sprinkling plates 2A, 2B, it is possible to prevent the decorative plate 22 from falling off while improving the design.

  As described above, the embodiment of the shower head device 1 according to the present invention has been described, but the present invention is not limited to the above embodiment, and can be appropriately changed without departing from the gist thereof.

  For example, in the present embodiment, the decorative surface 221a located on the surface of the decorative plate 22 is provided at a position recessed to the back side from the surface 24a of the lower sprinkling plate 2B. It may be one.

  Although an accent ring 21 (ring member) is interposed between the opening of the sprinkler plate and the decorative member, this ring member can be omitted.

  In addition, the components in the above-described embodiment can be appropriately replaced with known components without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 1 Shower head device 2 Sprinkling member 2A Upper sprinkling plate 2B Lower sprinkling plate 3A Upper water passing unit 3A Upper water passing unit 3B Lower water passing unit 3C Annular water passage 4 Main body case 5 Primary water stopping mechanism unit 21 Accent ring (ring member)
22 Makeup plate (makeup member)
23 first opening 24 watering surface 24a watering hole 24b surface 32 third opening 36 fourth opening 50 fixing screw 260 second opening

Claims (3)

A watering plate having watering holes on the surface,
A main body case that holds the water sprinkling plate and houses therein a water passage that communicates with the water sprinkling hole,
The sprinkler plate has an opening formed in a central portion viewed from the surface side,
A shower head device, comprising: a makeup member that can be arranged so as to close the opening from the back side of the water spray plate.   The shower head device according to claim 1, wherein a decorative surface located on a surface of the decorative member is provided at a position recessed from a surface of the sprinkler plate.   The shower head device according to claim 1, wherein a ring member is interposed between the opening of the sprinkler plate and the decorative member.

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